Celebrated annually on October 23 from 6:02 a.m. to 6:02 p.m., Mole Day commemorates "Avogadro's Number": 6.02 x 10 23. This number--called a mole--is a basic measuring unit in chemistry. Mole Day ...

Chemists use symbols and formulae to represent elements, ions and compounds. Chemical equations model the changes that happen in chemical reactions. The mole and Avogadro's constant - OCR Gateway ...

Calculations in chemistry (Higher) - AQA The mole is the unit for amount of substance. The number of particles in a substance can be found using the Avogadro constant. The mass of product depends ...